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What is the formula for concrete cube compressive test by Accelerated Curing Tank (ACT) method?

Engineering Concrete Civil Engineering Project Management
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Question added by Omair Abduljaleel Ali Al-Quliey , Design Engineer , Quliey Office for constructions
Date Posted: 2015/01/03
Upvote (3) Views (56) Followers (6) Answers (5) Report Question
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جعفر هندي زين السقاف
by جعفر هندي زين السقاف , "Certified trainer by the Yemeni Engineers Syndicate." , Engineers Syndicate

M20-for7 days it should be67% and for28 days it should be100%...formula for cube testing: ex: m20 size of cube surface area is15*15 =225/10=22.5 for m207days20 *22.5 *67% =301.5 kn.28 days20 *22.5 =450 kn.

Alex Al Yazouri
by Alex Al Yazouri , General Manager , Al Mushref Cooperative Society

I agree with Eng. Jaafar.

Tarek Alahmar
by Tarek Alahmar , Project Manager , Ertas Mimarlik

I agree with Mr Jaafer ........thank you for your question

hatem labib
by hatem labib , Quality control manager , MISER consultant

Agree with Mr Gaafer

abdul Rahman Salihi
by abdul Rahman Salihi , Chief Civil Engineer , State Company of Implementing Major Elect . power generating projects ects

The question as i understand regards the gaining of the real28 gays Compressive strength using the formule of ACT for cub test, The formula is : R28 =8.09 +1.64 Ra Where. Ra. Is the result gained From the ACT Cube test, in newtons / mm2 and R28 is the predictrd28 days compresive strngth for the mix in the question. As per ( IS:), I hope i have answered the question. Abdulrahman Salihi,

Consultant Civil Engineer

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